Impact of production and drying methods on the volatile and phenolic characteristics of fresh and powdered sweet red peppers


GÜÇLÜ G., Keser D., Kelebek H., KESKİN M., ŞEKERLİ Y. E., SOYSAL Y., ...More

FOOD CHEMISTRY, vol.338, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 338
  • Publication Date: 2021
  • Doi Number: 10.1016/j.foodchem.2020.128129
  • Journal Name: FOOD CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Food Science & Technology Abstracts, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Capsicum annuum L., Postharvest processing, Organic and conventional farming, Aroma, Phenolic compounds, Sensory analysis, CAPSICUM-ANNUUM, ANTIOXIDANT ACTIVITY, SENSORY EVALUATION, ASCORBIC-ACID, HOT AIR, GC-MS, KINETICS, FLAVOR, TEMPERATURE, COLOR
  • Çukurova University Affiliated: Yes

Abstract

Aroma, phenolic compounds and sensory properties of fresh and powdered organic and conventional sweet red peppers dried by three methods (hot air, intermittent microwave and infrared) were studied. The number of aroma compounds was higher in both fresh and powdered organic pepper samples; however, the total amount was higher in conventional samples. In both organic and conventional samples, alcohols were the dominant aroma group. (E)-beta-ionone and beta-ocimene, which are important compounds in peppers, were determined only in organic peppers. Among the drying methods, intermittent microwave drying was more effective in creating new aroma compounds. The liquid chromatography, coupled with tandem mass spectrometry (LC-MS/MS) revealed that luteolin derivative compounds comprised an average of 70% of the phenolics. Higher amount of phenolic were determined in organic samples. Infrared drying was more effective in retaining of phenolics than the other two methods. Sensory analysis revealed that hot air-dried samples were least preferred.